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y=[184,107,49,15366,575,19120,5504] x=[5.15,8.21,10.39,1.07,2.37,0.94,1.50] f(x)ΪָÊýº¯Êý£ºf(x)=a*x^b º¬Ô¼ÊøµÄ·ÇÏßÐÔ²ÎÊýÄâºÏµÄ×îÓÅÄ¿±êΪ: min{[y1-f(x1)]^2+[y2-f(x2)]^2+[y3-f(x3)]^2¡¡[yn-f(xn)]^2} Ô¼ÊøÌõ¼þΪ£º 0.5yi<f(xi)<2yi ±¾ÌâµÄÄ¿µÄÊÇÏëÇóʹĿ±êº¯Êý×îÓŵÄÃݺ¯ÊýµÄ²ÎÊýaºÍb¡£ ÎÒ³õѧmatlab£¬¿´¹ýһЩº¬Ô¼ÊøµÄÇúÏßÄâºÏµÄÀý×Ó£¬¶¼ÊǶԷ½²îµÈ²ÎÊý½øÐÐÔ¼Êø£¬Ò²¿´¹ýһЩ²ÎÊýÄâºÏµÄÀý×Ó£¬µ«ÊÇÔõôÌí¼ÓÔ¼ÊøÃ»ÓÐÕÒµ½£¬Õâ¸öÎÊÌâÀ§ÈÅÎÒ½ü1¸öÔÂÁË£¬Çë¸÷λ°ï°ï棬°ïÎÒ½â¾öÒ»ÏÂÕâ¸öÎÊÌ⣬¶àл£¡ |
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3Â¥2015-09-29 13:32:37
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Matlab×öÓÅ»¯±È½ÏÂé·³£¬Ð§¹ûÒ²²»ºÃÕÆ¿Ø£¬¹âͼ½á¹ûµÄ»°1stOpt¸ü¼òµ¥ºÃÓ㺠Ŀ±êº¯ÊýÖµ(×îС): 117013910.380015 a: 9682.97844587003 b: -2.4691625663481 Ô¼Êøº¯Êý: 1: a*5.15^b-(0.5*184) = 77.21591269 2: a*5.15^b-(2*184) = -198.7840873 3: a*8.21^b-(0.5*107) = -0.0008269879962 4: a*8.21^b-(2*107) = -160.500827 5: a*10.39^b-(0.5*49) = 5.410240888 6: a*10.39^b-(2*49) = -68.08975911 7: a*1.07^b-(0.5*15366) = 510.2393324 8: a*1.07^b-(2*15366) = -22538.76067 9: a*2.37^b-(0.5*575) = 862.4908301 10: a*2.37^b-(2*575) = -0.009169892725 11: a*0.94^b-(0.5*19120) = 1721.339345 12: a*0.94^b-(2*19120) = -26958.66065 13: a*1.5^b-(0.5*5504) = 806.0415879 14: a*1.5^b-(2*5504) = -7449.958412 |
2Â¥2015-09-29 10:26:32









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